/* ==========================================================
   上海小螺号能力开发中心 · 官网样式
   设计语言：海螺 / 声波 / 海岸的温暖专业感
   原则：纯本地、无外部字体与框架；动效为渐进增强，
   无 JS 或抓取器看到的是完整可见的静态内容。
   ========================================================== */
:root{
  --ink:#10262e;--muted:#5b6f77;
  --sea:#0e4a5f;--sea2:#12657c;--sea-deep:#082f3b;
  --coral:#e8703f;--coral-d:#c95a2c;--coral-soft:#fcece3;--sun:#ffbf41; /* sun = 官方 logo 金色 */
  --bg:#fbf9f4;--card:#fff;--line:#e3e9e6;--tint:#eef5f3;
  --shadow:0 10px 30px rgba(14,74,95,.08);
  --shadow-lg:0 26px 60px rgba(14,74,95,.18);
  --r:16px;--ease:cubic-bezier(.22,.8,.24,1);
  --head:74px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
[id]{scroll-margin-top:calc(var(--head) + 16px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei UI","Microsoft YaHei",system-ui,-apple-system,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--sea2);text-decoration:none;transition:color .2s}
a:hover{text-decoration:underline}
img,svg{max-width:100%}
::selection{background:var(--coral);color:#fff}
:focus-visible{outline:3px solid rgba(232,112,63,.55);outline-offset:3px;border-radius:6px}
.wrap{width:min(1120px,calc(100% - 40px));margin:0 auto}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:8px 14px;z-index:200}

/* ---------- 阅读进度 / 回到顶部 ---------- */
.progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:120;pointer-events:none}
.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--coral),var(--sun));transform:scaleX(0);transform-origin:left}
.to-top{position:fixed;right:20px;bottom:22px;z-index:90;width:46px;height:46px;border-radius:50%;border:0;background:var(--sea);color:#fff;font-size:18px;line-height:1;cursor:pointer;box-shadow:var(--shadow-lg);opacity:0;transform:translateY(16px) scale(.9);pointer-events:none;transition:opacity .3s,transform .3s var(--ease),background .2s}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{background:var(--coral)}

/* ---------- 页头 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(251,249,244,.86);-webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid rgba(227,233,230,.9);transition:box-shadow .3s,background .3s}
.site-header.is-scrolled{box-shadow:0 8px 28px rgba(14,74,95,.1);background:rgba(251,249,244,.95)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:var(--head);transition:min-height .3s var(--ease)}
.site-header.is-scrolled .header-inner{min-height:60px}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink)}
.brand:hover{text-decoration:none}
.mark{width:auto;height:44px;flex:0 0 auto;object-fit:contain;transition:transform .5s var(--ease);transform-origin:50% 80%}
.brand:hover .mark{transform:rotate(-8deg) scale(1.1)}
.site-header.is-scrolled .mark{height:38px}
.mark{transition:transform .5s var(--ease),height .3s var(--ease)}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:18px;letter-spacing:.05em}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.02em}
.site-nav{display:flex;align-items:center;gap:20px}
.site-nav a{font-size:14px;color:var(--muted);white-space:nowrap}
.site-nav a:not(.nav-cta){position:relative;padding:6px 0}
.site-nav a:not(.nav-cta)::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--coral);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.site-nav a:hover,.site-nav a[aria-current="page"]{color:var(--sea);text-decoration:none}
.site-nav a:not(.nav-cta):hover::after,.site-nav a[aria-current="page"]::after{transform:scaleX(1)}
.site-nav a[aria-current="page"]{font-weight:700}
.nav-cta{position:relative;overflow:hidden;background:linear-gradient(135deg,var(--sea),var(--sea2));color:#fff!important;padding:9px 16px;border-radius:999px;box-shadow:0 6px 16px rgba(14,74,95,.25);transition:transform .3s var(--ease),box-shadow .3s}
.nav-cta::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.4) 50%,transparent 70%);transform:translateX(-120%);transition:transform .7s}
.nav-cta:hover{text-decoration:none;transform:translateY(-2px);box-shadow:0 10px 22px rgba(14,74,95,.3)}
.nav-cta:hover::after{transform:translateX(120%)}
.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;font-size:18px;line-height:1;padding:9px 12px;cursor:pointer;color:var(--sea);transition:background .2s,transform .2s}
.nav-toggle:active{transform:scale(.94)}

.crumbs{width:min(1120px,calc(100% - 40px));margin:16px auto 0;font-size:13px;color:var(--muted)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0}
.crumbs .sep{margin-left:8px;color:#b6c3c2}

/* ---------- 动画关键帧 ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}
@keyframes cardIn{from{opacity:0;translate:0 40px;scale:.96}to{opacity:1;translate:0 0;scale:1}}
@keyframes floaty{0%,100%{translate:0 0}50%{translate:0 -12px}}
@keyframes drift{from{transform:translate(0,0) scale(1)}to{transform:translate(50px,36px) scale(1.12)}}
@keyframes eq{0%,100%{transform:scaleY(.16)}50%{transform:scaleY(1)}}
@keyframes wave{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes marq{to{transform:translateX(-50%)}}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.97)}to{opacity:1;transform:none}}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(232,112,63,.5)}100%{box-shadow:0 0 0 14px rgba(232,112,63,0)}}

/* ---------- 滚动渐显（仅 JS 可用时启用） ---------- */
.js .rv{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:calc(var(--d,0) * 80ms)}
.js .rv.in{opacity:1;transform:none}

/* ---------- 卡片光晕跟随 ---------- */
.glow{position:relative;overflow:hidden}
.glow::before{content:"";position:absolute;inset:0;background:radial-gradient(380px circle at var(--mx,50%) var(--my,50%),rgba(232,112,63,.11),transparent 62%);opacity:0;transition:opacity .35s;pointer-events:none}
.glow:hover::before{opacity:1}

/* ---------- 首页 Hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 132px;background:linear-gradient(165deg,#e4f0ed 0%,#fbf9f4 72%)}
.hero-bg{position:absolute;inset:0;pointer-events:none}
/* 光斑用径向渐变而非 filter:blur，动画时几乎无绘制开销 */
.hero-bg .blob{position:absolute;border-radius:50%;opacity:.85;will-change:transform;animation:drift 18s ease-in-out infinite alternate}
.hero-bg .b1{width:620px;height:620px;background:radial-gradient(circle,rgba(150,214,200,.75),transparent 66%);left:-230px;top:-230px}
.hero-bg .b2{width:560px;height:560px;background:radial-gradient(circle,rgba(251,176,142,.6),transparent 66%);right:-190px;top:-80px;animation-delay:-6s}
.hero-bg .b3{width:520px;height:520px;background:radial-gradient(circle,rgba(255,213,120,.6),transparent 66%);left:34%;bottom:-260px;animation-delay:-11s}
.hero-bg .ring{position:absolute;right:6%;top:-120px;width:420px;height:420px;border-radius:50%;border:2px dashed rgba(14,74,95,.16);animation:spin 70s linear infinite}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-copy>*{animation:fadeUp .9s var(--ease) both}
.hero-copy>*:nth-child(1){animation-delay:.05s}
.hero-copy>*:nth-child(2){animation-delay:.15s}
.hero-copy>*:nth-child(3){animation-delay:.28s}
.hero-copy>*:nth-child(4){animation-delay:.4s}
.hero-copy>*:nth-child(5){animation-delay:.5s}
.hero-copy>*:nth-child(6){animation-delay:.6s}
.eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--coral);font-weight:700;margin:0 0 14px}
.hero .eyebrow::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--coral);animation:pulse 1.8s infinite}
.hero h1{font-size:clamp(32px,4.4vw,52px);line-height:1.2;margin:0 0 22px;letter-spacing:-.01em;font-weight:800;background:linear-gradient(transparent 68%,rgba(246,198,103,.55) 68%,rgba(246,198,103,.55) 92%,transparent 92%) no-repeat;background-size:0 100%;animation:fadeUp .9s var(--ease) .15s both,hl 1.1s var(--ease) .9s forwards;display:block;width:fit-content;max-width:100%}
@keyframes hl{to{background-size:100% 100%}}
.hero-entity{font-size:16px;line-height:1.9;color:#294450;background:rgba(255,255,255,.72);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-left:3px solid var(--coral);padding:16px 18px;border-radius:0 12px 12px 0;margin:22px 0 26px;box-shadow:0 6px 20px rgba(14,74,95,.05)}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:20px}
.hero-note{font-size:13px;color:var(--muted);margin:0 0 20px}
.soundwave{display:flex;align-items:center;gap:4px;height:46px;max-width:360px}
.soundwave i{flex:1;max-width:6px;height:100%;border-radius:4px;background:linear-gradient(var(--coral),var(--sea2));transform:scaleY(.16);animation:eq calc(1s + var(--h,0) * .18s) ease-in-out infinite;animation-delay:calc(var(--i,0) * -110ms)}

.hero-card{position:relative;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.9);border-radius:22px;padding:30px 28px 26px;box-shadow:var(--shadow-lg);transform:perspective(900px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg));transition:transform .3s var(--ease);animation:cardIn 1s var(--ease) .3s both,floaty 7s ease-in-out 1.4s infinite}
.card-tag{font-size:11px;letter-spacing:.14em;color:var(--coral);font-weight:800}
.card-conch{position:absolute;right:20px;top:-44px;width:78px;height:auto;filter:drop-shadow(0 12px 14px rgba(180,110,20,.28));transform-origin:50% 90%;animation:conchIn 1.2s var(--ease) .8s both,sway 5s ease-in-out 2s infinite}
@keyframes conchIn{from{opacity:0;transform:translateY(24px) rotate(-18deg) scale(.7)}to{opacity:1;transform:none}}
@keyframes sway{0%,100%{transform:rotate(-3deg)}50%{transform:rotate(4deg)}}
.hero-card dl{display:grid;grid-template-columns:88px 1fr;gap:12px 14px;margin:20px 0 16px;font-size:14px}
.hero-card dt{color:var(--muted)}
.hero-card dd{margin:0;font-weight:600}
.card-foot{font-size:12px;color:var(--muted);border-top:1px dashed var(--line);padding-top:14px;margin:0}
.hero-waves{position:absolute;left:0;right:0;bottom:-1px;height:92px;overflow:hidden;pointer-events:none}
.hero-waves svg{position:absolute;left:0;bottom:0;width:200%;max-width:none;height:92px;animation:wave 22s linear infinite}
.hero-waves .wv1{fill:rgba(18,101,124,.13);animation-duration:30s;animation-direction:reverse;bottom:6px}
.hero-waves .wv2{fill:rgba(232,112,63,.10);animation-duration:24s;bottom:2px}
.hero-waves .wv3{fill:var(--bg)}

/* ---------- 关键词跑马灯 ---------- */
.marquee{overflow:hidden;background:linear-gradient(90deg,var(--sea-deep),var(--sea));color:#d4eaee;padding:15px 0;position:relative}
.marquee ul{display:flex;gap:44px;list-style:none;margin:0;padding:0;width:max-content}
.marquee.is-live ul{animation:marq 46s linear infinite}
.marquee:hover ul{animation-play-state:paused}
.marquee li{white-space:nowrap;font-size:14px;letter-spacing:.14em;display:flex;align-items:center;gap:44px}
.marquee li::before{content:"✦";color:var(--sun);font-size:12px}

/* ---------- 按钮 ---------- */
.btn{position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;padding:12px 22px;border-radius:12px;font-size:14px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .3s var(--ease),box-shadow .3s,background .25s,border-color .25s}
.btn:hover{text-decoration:none;transform:translateY(-3px)}
.btn:active{transform:translateY(0) scale(.97)}
.btn-primary{background:linear-gradient(135deg,var(--sea),var(--sea2));color:#fff;box-shadow:0 10px 22px rgba(14,74,95,.25)}
.btn-primary:hover{box-shadow:0 16px 30px rgba(14,74,95,.32)}
.btn-primary::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.38) 50%,transparent 70%);transform:translateX(-120%);transition:transform .7s}
.btn-primary:hover::after{transform:translateX(120%)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--sea)}
.btn-ghost:hover{border-color:var(--coral);color:var(--coral-d);box-shadow:0 10px 22px rgba(232,112,63,.14)}

/* ---------- 通用版块 ---------- */
.section{padding:72px 0}
.section-tint{background:var(--tint);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section h2,.page-hero h2{font-size:clamp(23px,2.7vw,31px);line-height:1.35;margin:0 0 14px;letter-spacing:-.01em;font-weight:800}
.section-intro{color:var(--muted);max-width:820px;margin:0 0 28px;font-size:15px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{margin:0;position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:5px;border-radius:3px;background:linear-gradient(var(--coral),var(--sun))}
.section-head a{font-size:14px;font-weight:700;white-space:nowrap}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}

.stat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 14px 22px;text-align:center;position:relative;transition:transform .4s var(--ease),box-shadow .4s}
.stat::after{content:"";position:absolute;left:24%;right:24%;top:0;height:3px;border-radius:0 0 4px 4px;background:linear-gradient(90deg,var(--coral),var(--sun))}
.stat:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.stat strong{display:block;font-size:clamp(25px,3vw,34px);line-height:1.2;letter-spacing:-.02em;font-variant-numeric:tabular-nums;background:linear-gradient(120deg,var(--sea) 20%,#1d8aa6);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:4px}
.stat span{font-size:12px;color:var(--muted)}

.feature-list{display:grid;gap:14px}
.feature{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;transition:transform .4s var(--ease),box-shadow .4s,border-color .3s}
.feature:hover{transform:translateX(6px);box-shadow:var(--shadow);border-color:#f0c9b2}
.feature>span{flex:0 0 38px;height:38px;border-radius:12px;background:var(--coral-soft);color:var(--coral);font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center}
.feature strong{display:block;font-size:15px}
.feature p{margin:4px 0 0;font-size:13px;color:var(--muted);line-height:1.7}

/* 首页：服务卡 */
.home-services{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:s}
.home-service{counter-increment:s;display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 20px 20px;color:var(--ink);transition:transform .4s var(--ease),box-shadow .4s,border-color .3s}
.home-service::after{content:counter(s,decimal-leading-zero);position:absolute;right:14px;top:8px;font-size:34px;font-weight:800;line-height:1;color:rgba(14,74,95,.07);transition:color .3s,transform .4s var(--ease)}
.home-service:hover{text-decoration:none;transform:translateY(-6px);border-color:var(--coral);box-shadow:var(--shadow-lg)}
.home-service:hover::after{color:rgba(232,112,63,.28);transform:scale(1.15)}
.home-service strong{font-size:16px;position:relative}
.home-service span{font-size:12px;color:var(--muted)}

/* 流程 */
.flow{list-style:none;display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin:0;padding:0}
.flow li{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 18px;position:relative;transition:transform .4s var(--ease),box-shadow .4s,border-color .3s}
.flow li:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--coral)}
.flow li>span{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:var(--coral-soft);color:var(--coral);font-size:13px;font-weight:800;letter-spacing:.04em;margin-bottom:12px;transition:background .3s,color .3s,transform .4s var(--ease)}
.flow li:hover>span{background:var(--coral);color:#fff;transform:rotate(360deg)}
.flow li strong{display:block;font-size:15px;margin-bottom:8px}
.flow li p{font-size:12px;color:var(--muted);line-height:1.75;margin:0}
.flow li:not(:last-child)::after{content:"";position:absolute;top:41px;right:-17px;width:18px;height:2px;background:repeating-linear-gradient(90deg,var(--coral) 0 4px,transparent 4px 7px);z-index:1}

/* 主题簇卡 */
.cluster-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px}
.cluster-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;color:var(--ink);transition:transform .4s var(--ease),box-shadow .4s,border-color .3s}
.cluster-card::after{content:"→";position:absolute;right:18px;bottom:16px;color:var(--coral);font-weight:800;opacity:0;transform:translateX(-10px);transition:opacity .3s,transform .4s var(--ease)}
.cluster-card:hover{text-decoration:none;border-color:var(--sea2);box-shadow:var(--shadow-lg);transform:translateY(-6px)}
.cluster-card:hover::after{opacity:1;transform:none}
.cluster-count{font-size:11px;font-weight:800;letter-spacing:.06em;color:var(--coral);background:var(--coral-soft);padding:4px 10px;border-radius:6px;align-self:flex-start}
.cluster-card strong{font-size:17px;margin:14px 0 6px}
.cluster-card p{font-size:12px;color:var(--muted);line-height:1.7;margin:0 0 14px}

/* 问答卡 */
.q-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.q-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;color:var(--ink);transition:transform .4s var(--ease),box-shadow .4s,border-color .3s}
.q-card::after{content:"→";position:absolute;right:20px;top:22px;color:var(--coral);font-weight:800;opacity:0;transform:translateX(-10px);transition:opacity .3s,transform .4s var(--ease)}
.q-card:hover{text-decoration:none;transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:#f0c9b2}
.q-card:hover::after{opacity:1;transform:none}
.q-mark{display:inline-flex;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--coral),#f19a73);color:#fff;font-weight:800;align-items:center;justify-content:center;font-size:14px;transition:transform .4s var(--ease)}
.q-card:hover .q-mark{transform:rotate(-12deg) scale(1.12)}
.q-card h3{font-size:16px;line-height:1.55;margin:14px 0 8px}
.q-card p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}

.pill-grid{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 18px;font-size:14px;color:var(--sea);transition:transform .3s var(--ease),background .25s,color .25s,border-color .25s}
.pill:hover{background:var(--sea);color:#fff;border-color:var(--sea);text-decoration:none;transform:translateY(-3px)}

/* CTA 横幅 */
.cta-band{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;background:linear-gradient(135deg,var(--sea-deep),var(--sea) 60%,var(--sea2));color:#fff;border-radius:26px;padding:44px 48px;box-shadow:var(--shadow-lg)}
.cta-band::before,.cta-band::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.cta-band::before{width:300px;height:300px;right:-80px;top:-120px;border:2px dashed rgba(255,255,255,.22);animation:spin 50s linear infinite}
.cta-band::after{width:220px;height:220px;left:-70px;bottom:-110px;background:radial-gradient(circle,rgba(232,112,63,.55),transparent 70%)}
.cta-band>*{position:relative;z-index:1}
.cta-band h2{margin:0 0 8px;color:#fff}
.cta-band p{color:#c9e3e9;font-size:15px;max-width:640px;margin:0}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.cta-band .btn-primary{background:linear-gradient(135deg,var(--coral),#f08a5f);box-shadow:0 10px 24px rgba(0,0,0,.25)}
.cta-band .btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.35)}
.cta-band .btn-ghost:hover{background:#fff;color:var(--sea)}

/* ---------- 内页 Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:linear-gradient(165deg,#e4f0ed,#fbf9f4 78%);border-bottom:1px solid var(--line);padding:62px 0 64px}
.page-hero::before{content:"";position:absolute;right:-100px;top:-130px;width:400px;height:400px;border-radius:50%;border:2px dashed rgba(14,74,95,.18);animation:spin 70s linear infinite}
.page-hero::after{content:"";position:absolute;right:20px;top:-10px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle at 40% 40%,rgba(255,191,65,.45),rgba(251,176,142,.3) 45%,transparent 70%);will-change:transform;animation:drift 14s ease-in-out infinite alternate}
.page-hero .wrap{position:relative;z-index:1}
.page-hero .wrap>*{animation:fadeUp .8s var(--ease) both}
.page-hero .wrap>*:nth-child(2){animation-delay:.1s}
.page-hero .wrap>*:nth-child(3){animation-delay:.2s}
.page-hero .wrap>*:nth-child(4){animation-delay:.3s}
.page-hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;margin:0 0 18px;font-weight:800;letter-spacing:-.01em}
.page-lede{font-size:17px;line-height:1.9;max-width:900px;margin:0;color:#294450}

.panel{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;margin-bottom:18px;transition:box-shadow .4s,transform .4s var(--ease)}
.panel:hover{box-shadow:var(--shadow)}
.panel h2{font-size:20px;margin:0 0 14px}
.panel p{font-size:14px;color:#3b535c;margin:0 0 12px}
.panel p:last-child{margin-bottom:0}
.panel-accent{border-left:4px solid var(--coral);background:#fffaf7}
.small{font-size:12px;color:var(--muted)}
.info-table{width:100%;border-collapse:collapse;font-size:14px}
.info-table th,.info-table td{text-align:left;padding:11px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.info-table tr{transition:background .2s}
.info-table tr:hover{background:#f6faf9}
.info-table th{color:var(--muted);font-weight:500;width:120px;white-space:nowrap}
.info-table td{font-weight:600}
.clean-list{list-style:none;padding:0;margin:12px 0 0;font-size:14px}
.clean-list li{padding:10px 0;border-bottom:1px dashed var(--line);color:#3b535c;line-height:1.7}
.clean-list li:last-child{border:0}

.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.service{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:transform .4s var(--ease),box-shadow .4s,border-color .3s}
.service:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--sea2)}
.service h2{font-size:18px;margin:0 0 10px}
.service p{font-size:14px;color:#3b535c;margin:0 0 14px;line-height:1.8}
.tags{display:flex;flex-wrap:wrap;gap:7px}
.tags span{font-size:12px;background:var(--tint);color:var(--sea);padding:4px 11px;border-radius:7px;transition:background .25s,color .25s}
.service:hover .tags span{background:var(--sea);color:#fff}

.filter-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.filter{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 18px;font-size:13px;cursor:pointer;color:var(--muted);font-family:inherit;transition:all .25s var(--ease)}
.filter:hover{border-color:var(--sea2);color:var(--sea)}
.filter.is-on{background:var(--sea);color:#fff;border-color:var(--sea);box-shadow:0 8px 18px rgba(14,74,95,.22)}
.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tool{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;transition:transform .4s var(--ease),box-shadow .4s,border-color .3s;animation:pop .45s var(--ease) both}
.tool:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#f0c9b2}
.tool[hidden]{display:none}
.tool-cat{font-size:11px;background:var(--coral-soft);color:var(--coral);padding:4px 10px;border-radius:6px;font-weight:700}
.tool h2{font-size:17px;margin:14px 0 8px}
.tool p{font-size:13px;color:var(--muted);margin:0 0 10px;line-height:1.75}
.tool-goal{font-size:13px!important}
.tool>a{font-size:13px;font-weight:700}

.faq-list{display:grid;gap:12px}
.faq-row{display:flex;align-items:center;gap:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 26px;color:var(--ink);transition:transform .4s var(--ease),box-shadow .4s,border-color .3s}
.faq-row:hover{text-decoration:none;border-color:var(--coral);box-shadow:var(--shadow-lg);transform:translateX(8px)}
.faq-num{font-size:14px;font-weight:800;color:var(--coral);letter-spacing:.08em}
.faq-main{flex:1}
.faq-main strong{display:block;font-size:17px;line-height:1.5}
.faq-main em{display:block;font-style:normal;font-size:13px;color:var(--muted);margin-top:4px}
.faq-arrow{font-size:22px;color:var(--sea2);transition:transform .4s var(--ease),color .3s}
.faq-row:hover .faq-arrow{transform:translateX(6px);color:var(--coral)}

/* ---------- 文章 / 问答详情 ---------- */
.article{width:min(820px,calc(100% - 40px));margin:0 auto;padding:48px 0 64px}
.article-head{animation:fadeUp .8s var(--ease) both}
.article-head h1{font-size:clamp(26px,3.5vw,39px);line-height:1.4;margin:0 0 16px;letter-spacing:-.01em;font-weight:800}
.article-meta{font-size:13px;color:var(--muted);margin:0 0 28px}
.lede-box{position:relative;background:linear-gradient(135deg,#fffaf7,#fff4ec);border:1px solid #f3d8c9;border-left:4px solid var(--coral);border-radius:0 var(--r) var(--r) 0;padding:26px 28px;margin:0 0 36px;box-shadow:0 12px 30px rgba(232,112,63,.08)}
.lede-box::after{content:"“";position:absolute;right:20px;top:-6px;font-size:90px;line-height:1;font-family:Georgia,serif;color:rgba(232,112,63,.16)}
.lede-label{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.12em;color:#fff;background:var(--coral);padding:3px 10px;border-radius:6px;margin-bottom:12px}
.lede-box p{font-size:17px;line-height:1.9;margin:0;font-weight:500;position:relative;z-index:1}
.answer-block{margin:0 0 32px}
.answer-block h2{font-size:20px;margin:0 0 10px;padding-left:14px;border-left:4px solid;border-image:linear-gradient(var(--sea2),var(--coral)) 1}
.answer-block p{font-size:16px;line-height:1.95;color:#2a424b;margin:0}
.steps-box{background:var(--tint);border-radius:var(--r);padding:28px 30px;margin:0 0 24px}
.steps-box h2{font-size:20px;margin:0 0 16px}
.steps-box ol{list-style:none;margin:0;padding:0;counter-reset:t}
.steps-box li{counter-increment:t;position:relative;font-size:15px;line-height:1.85;padding:8px 0 8px 42px;color:#2a424b}
.steps-box li::before{content:counter(t);position:absolute;left:0;top:9px;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--sea),var(--sea2));color:#fff;font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center}
.notice-box{border:1px dashed #d9a68e;border-radius:var(--r);padding:22px 26px;margin:0 0 30px;background:#fff}
.notice-box h2{font-size:17px;margin:0 0 8px;color:#a8542f}
.notice-box p{font-size:14px;line-height:1.85;margin:0;color:#3b535c}
.mini-faq h2,.answer-links h2{font-size:20px;margin:0 0 16px}
.mini-q{border-bottom:1px solid var(--line);padding:16px 0}
.mini-q:last-child{border:0}
.mini-q h3{font-size:16px;margin:0 0 6px}
.mini-q p{font-size:14px;color:#3b535c;margin:0;line-height:1.8}
.answer-links{margin-top:36px}
.link-cols{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.link-cols h3{font-size:14px;color:var(--muted);margin:0 0 10px}
.link-cols ul{list-style:none;padding:0;margin:0}
.link-cols li{padding:9px 0;font-size:14px;border-bottom:1px dashed var(--line);transition:padding-left .3s var(--ease)}
.link-cols li:hover{padding-left:8px}
.disclaimer{font-size:13px;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-top:32px;line-height:1.8}
.kb-nav{display:flex;justify-content:space-between;gap:16px;margin-top:30px;font-size:14px;font-weight:700}

.entity-strip{width:min(1120px,calc(100% - 40px));margin:40px auto 60px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--sea);border-radius:14px;padding:20px 24px;display:flex;flex-direction:column;gap:5px;font-size:13px;color:var(--muted)}
.entity-strip strong{color:var(--sea);font-size:15px}
.boundary-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.boundary-grid .panel{margin:0}
.split-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.split-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;transition:transform .4s var(--ease),box-shadow .4s}
.split-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.split-card h3{font-size:19px;margin:14px 0 10px}
.split-card p{font-size:14px;color:#3b535c;line-height:1.85;margin:0 0 14px}
.tag{font-size:11px;font-weight:800;letter-spacing:.08em;background:var(--sea);color:#fff;padding:4px 11px;border-radius:6px}
.tag-alt{background:var(--coral)}
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:transform .4s var(--ease),box-shadow .4s,border-color .3s}
.contact-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--coral)}
.contact-label{display:block;font-size:12px;color:var(--muted);margin-bottom:8px}
.contact-card strong{display:block;font-size:18px;line-height:1.5}
.contact-card p{font-size:13px;color:var(--muted);margin:8px 0 0;line-height:1.7}
.contact-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 16px}

/* ---------- 流程详情 ---------- */
.flow-detail{display:grid;gap:16px;position:relative}
.flow-step{display:flex;gap:22px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 28px;transition:transform .4s var(--ease),box-shadow .4s,border-color .3s}
.flow-step:hover{transform:translateX(8px);box-shadow:var(--shadow-lg);border-color:var(--coral)}
.flow-n{flex:0 0 52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--coral),#f19a73);color:#fff;font-size:20px;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 20px rgba(232,112,63,.28)}
.flow-step h2{font-size:19px;margin:0 0 8px}
.flow-step p{font-size:14px;color:#3b535c;line-height:1.85;margin:0 0 10px}
.flow-step a{font-size:13px;font-weight:700}

/* ---------- 知识库 ---------- */
.kb-toolbar{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 26px;margin-bottom:38px;box-shadow:var(--shadow)}
.kb-search-wrap{display:block}
.kb-search-wrap>span{display:block;font-size:12px;color:var(--muted);margin-bottom:8px}
#kb-search{width:100%;border:2px solid var(--line);border-radius:12px;padding:13px 16px;font-size:15px;font-family:inherit;color:var(--ink);background:var(--bg);transition:border-color .25s,box-shadow .25s,background .25s}
#kb-search:focus{outline:none;border-color:var(--coral);background:#fff;box-shadow:0 0 0 5px rgba(232,112,63,.14)}
.kb-filters{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 12px}
.kb-filter{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;font-size:13px;cursor:pointer;color:var(--muted);font-family:inherit;transition:all .25s var(--ease)}
.kb-filter:hover{border-color:var(--sea2);color:var(--sea);transform:translateY(-2px)}
.kb-filter.is-on{background:var(--sea);color:#fff;border-color:var(--sea);box-shadow:0 8px 18px rgba(14,74,95,.22)}
.kb-count{font-size:13px;color:var(--muted);margin:0}
.kb-count strong{color:var(--coral);font-size:15px}
.kb-empty{background:#fffaf7;border:1px dashed #f0c9b2;border-radius:12px;padding:22px;text-align:center;color:#a8542f;font-size:14px;margin-bottom:30px}
.kb-cluster{margin-bottom:46px}
.kb-cluster[hidden]{display:none}
.kb-cluster-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;border-bottom:2px solid var(--line);padding-bottom:12px;margin-bottom:20px;position:relative}
.kb-cluster-head::after{content:"";position:absolute;left:0;bottom:-2px;width:80px;height:2px;background:linear-gradient(90deg,var(--coral),var(--sun))}
.kb-cluster-head h2{font-size:22px;margin:0}
.kb-cluster-head span{font-size:13px;color:var(--muted)}
.kb-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.kb-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;color:var(--ink);transition:transform .4s var(--ease),box-shadow .4s,border-color .3s;animation:pop .45s var(--ease) both}
.kb-card[hidden]{display:none}
.kb-card:hover{text-decoration:none;border-color:var(--sea2);box-shadow:var(--shadow-lg);transform:translateY(-6px)}
.kb-cat{font-size:11px;font-weight:700;color:var(--coral);letter-spacing:.04em}
.kb-card h3{font-size:16px;line-height:1.55;margin:10px 0 8px}
.kb-card p{font-size:13px;color:var(--muted);line-height:1.7;margin:0 0 14px;flex:1}
.kb-more{font-size:12px;font-weight:700;color:var(--sea2);transition:letter-spacing .3s,color .3s}
.kb-card:hover .kb-more{letter-spacing:.08em;color:var(--coral)}
.kb-footnote{background:var(--tint);border-radius:var(--r);padding:28px 30px;margin-top:10px}
.kb-footnote h2{font-size:20px;margin:0 0 8px}
.kb-footnote p{font-size:14px;color:var(--muted);margin:0 0 16px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;overflow:hidden;background:linear-gradient(180deg,#0b3a49,#072a35);color:#c9dcdf;padding:56px 0 24px}
.site-footer::before{content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;border:2px dashed rgba(255,255,255,.1);animation:spin 80s linear infinite}
.site-footer .wrap{position:relative}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:800;color:#fff;margin-bottom:10px;letter-spacing:.03em}
.footer-mark{width:auto;height:40px;flex:0 0 auto}
.footer-grid h3{font-size:14px;color:#fff;margin:0 0 12px;letter-spacing:.06em}
.footer-line{font-size:13px;line-height:1.9;margin:4px 0}
.site-footer a{color:#9fd0dd;background:linear-gradient(currentColor,currentColor) 0 100%/0 1px no-repeat;transition:background-size .35s var(--ease),color .2s}
.site-footer a:hover{text-decoration:none;color:#fff;background-size:100% 1px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:36px;padding-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:#9db6bd}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .nav-toggle{display:block}
  .site-nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 24px 40px rgba(14,74,95,.14);padding:8px 20px 20px;visibility:hidden;opacity:0;transform:translateY(-10px);transition:opacity .3s,transform .35s var(--ease),visibility .3s}
  .site-nav.is-open{visibility:visible;opacity:1;transform:none}
  .site-nav a:not(.nav-cta){padding:14px 4px;border-bottom:1px solid var(--line);font-size:15px}
  .site-nav a:not(.nav-cta)::after{display:none}
  .nav-cta{margin-top:14px;text-align:center;padding:13px}
}
@media(max-width:900px){
  .hero-inner,.two-col,.footer-grid{grid-template-columns:1fr}
  .hero{padding:52px 0 110px}
  .hero-card{max-width:520px}
  .card-conch{right:-4px}
  .stat-grid{grid-template-columns:repeat(3,1fr)}
  .q-grid,.tool-grid,.home-services,.cluster-grid,.flow,.kb-grid{grid-template-columns:repeat(2,1fr)}
  .flow li:not(:last-child)::after{display:none}
  .service-grid,.boundary-grid,.contact-grid,.split-cards,.link-cols{grid-template-columns:1fr}
  .cta-band{padding:36px 30px}
}
@media(max-width:640px){
  :root{--head:66px}
  .section{padding:48px 0}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat:last-child{grid-column:span 2}
  .q-grid,.tool-grid,.home-services,.cluster-grid,.flow,.kb-grid{grid-template-columns:1fr}
  .hero-card,.panel,.lede-box{padding:22px}
  .hero-card dl{grid-template-columns:76px 1fr}
  .page-hero{padding:44px 0 46px}
  .page-hero::before{width:260px;height:260px;right:-120px}
  .article{padding:32px 0 44px}
  .crumbs{font-size:12px}
  .flow-step{padding:20px;gap:14px}
  .flow-n{flex-basis:44px;height:44px;font-size:17px;border-radius:13px}
  .kb-toolbar{padding:18px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 24px;border-radius:20px}
  .footer-bottom{flex-direction:column}
  .brand-text small{display:none}
  .section-head{flex-direction:column;align-items:flex-start;gap:6px}
  .faq-row{padding:18px;gap:14px}
  .to-top{right:14px;bottom:16px}
}

/* ---------- 减少动态效果 ---------- */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;animation-delay:0s!important;transition-duration:.001ms!important;transition-delay:0s!important}
  .js .rv{opacity:1;transform:none}
  .hero h1{background-size:100% 100%}
  .soundwave i{transform:scaleY(.6)}
}

/* ==========================================================
   v3 · 面向家长的首页与关于页（追加样式）
   ========================================================== */
@keyframes chipIn{from{opacity:0;transform:translateY(12px) scale(.94)}to{opacity:1;transform:none}}
.hero-home h1{display:block;width:auto;background:none;animation:fadeUp .9s var(--ease) .15s both;font-size:clamp(28px,4vw,46px);line-height:1.3;margin:0 0 18px}
.hero-home .h1-brand{display:block;font-size:clamp(15px,1.5vw,17px);letter-spacing:.2em;color:var(--sea2);font-weight:700;margin-bottom:12px}
.hero-home .h1-line{display:block}
.hero-home .h1-line em{font-style:normal;padding:0 .05em;background:linear-gradient(transparent 66%,rgba(255,191,65,.62) 66%,rgba(255,191,65,.62) 92%,transparent 92%) no-repeat;background-size:0 100%;animation:hl 1.1s var(--ease) 1s forwards}
.hero-lede{font-size:16px;line-height:1.95;color:#294450;max-width:560px;margin:0 0 26px;animation:fadeUp .9s var(--ease) .35s both}
.hero-chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 0;padding:0}
.hero-chips li{padding:7px 15px;border-radius:999px;background:rgba(255,255,255,.82);border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--sea);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);animation:chipIn .6s var(--ease) both}
.hero-chips li:nth-child(1){animation-delay:.75s}.hero-chips li:nth-child(2){animation-delay:.87s}.hero-chips li:nth-child(3){animation-delay:.99s}.hero-chips li:nth-child(4){animation-delay:1.11s}
.card-title{font-size:22px;line-height:1.35;margin:8px 0 0;letter-spacing:-.01em}
.hero-card dd small{display:block;color:var(--muted);font-weight:500;font-size:12px;margin-top:2px}
.btn-block{display:flex;justify-content:center;width:100%}

.section-stats{padding:44px 0 56px}
.stat-grid.cols4{grid-template-columns:repeat(4,1fr)}

/* 三种方式 */
.mode-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:26px}
.mode-card{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:20px;padding:32px 26px 28px;transition:transform .45s var(--ease),box-shadow .45s,border-color .3s}
.mode-card::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:linear-gradient(90deg,var(--coral),var(--sun));transform:scaleX(.18);transform-origin:left;transition:transform .6s var(--ease)}
.mode-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:#f0c9b2}
.mode-card:hover::before{transform:scaleX(1)}
.mode-n{position:absolute;right:20px;top:12px;font-size:58px;font-weight:800;line-height:1;color:rgba(14,74,95,.06);transition:color .3s,transform .5s var(--ease)}
.mode-card:hover .mode-n{color:rgba(232,112,63,.22);transform:translateY(-4px) scale(1.06)}
.mode-tag{display:inline-block;font-size:12px;font-weight:700;color:var(--coral-d);background:var(--coral-soft);padding:3px 11px;border-radius:999px;margin-bottom:14px}
.mode-card h3{font-size:21px;margin:0 0 10px;position:relative}
.mode-card p{font-size:14px;color:#3b535c;line-height:1.85;margin:0;position:relative}

/* 四件事 */
.pillar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pillar{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 22px 24px;transition:transform .45s var(--ease),box-shadow .45s,border-color .3s}
.pillar:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:#f0c9b2}
.pillar-ico{display:inline-flex;align-items:center;justify-content:center;width:58px;height:58px;border-radius:18px;background:linear-gradient(135deg,var(--sea),var(--sea2));color:#fff;box-shadow:0 12px 22px rgba(14,74,95,.25);margin-bottom:16px;transition:background .3s,transform .5s var(--ease)}
.pillar:nth-child(1) .pillar-ico{animation:floaty 6s ease-in-out infinite}
.pillar:nth-child(2) .pillar-ico{animation:floaty 6s ease-in-out -1.5s infinite}
.pillar:nth-child(3) .pillar-ico{animation:floaty 6s ease-in-out -3s infinite}
.pillar:nth-child(4) .pillar-ico{animation:floaty 6s ease-in-out -4.5s infinite}
.pillar:hover .pillar-ico{background:linear-gradient(135deg,var(--coral),#f19a73);transform:rotate(-8deg) scale(1.08)}
.pillar h3{font-size:18px;margin:0 0 6px;position:relative}
.pillar p{font-size:13px;color:var(--muted);margin:0;line-height:1.8;position:relative}

/* 流程 4 列 */
.flow.flow-4{grid-template-columns:repeat(4,1fr)}
.flow.flow-4 li p{font-size:13px}

/* 名师团队 */
.teacher-card{display:grid;grid-template-columns:200px 1fr;gap:36px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:24px;padding:36px 40px;box-shadow:var(--shadow)}
.teacher-emblem{position:relative;width:160px;height:160px;margin:0 auto;display:flex;align-items:center;justify-content:center}
.teacher-emblem span{position:relative;z-index:2;width:116px;height:116px;border-radius:50%;background:linear-gradient(135deg,var(--sea),var(--sea2));color:#fff;font-size:52px;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:0 18px 36px rgba(14,74,95,.3)}
.t-ring{position:absolute;inset:0;border-radius:50%;border:2px dashed rgba(232,112,63,.5);animation:spin 28s linear infinite}
.t-ring.r2{inset:12px;border:2px solid rgba(255,191,65,.6);border-left-color:transparent;border-right-color:transparent;animation:spin 14s linear infinite reverse}
.teacher-role{font-size:13px;color:var(--coral-d);font-weight:700;letter-spacing:.08em;margin:0 0 4px}
.teacher-body h3{font-size:28px;margin:0 0 12px}
.teacher-body p{font-size:15px;color:#33505a;line-height:1.95;margin:0 0 16px}
.tag-row{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0}
.tag-row li{font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;background:var(--tint);color:var(--sea);border:1px solid var(--line)}

/* 联系条 */
.cta-chips{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 0;padding:0}
.cta-chips li{font-size:13px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#e5f2f5}

@media(max-width:900px){
  .stat-grid.cols4{grid-template-columns:repeat(2,1fr)}
  .mode-grid{grid-template-columns:1fr}
  .pillar-grid,.flow.flow-4{grid-template-columns:repeat(2,1fr)}
  .teacher-card{grid-template-columns:1fr;gap:22px;padding:28px 26px;text-align:left}
  .teacher-emblem{margin:0}
}
@media(max-width:640px){
  .stat-grid.cols4 .stat:last-child{grid-column:auto}
  .pillar-grid,.flow.flow-4{grid-template-columns:1fr}
  .section-stats{padding:30px 0 38px}
}
@media(prefers-reduced-motion:reduce){
  .hero-home .h1-line em{background-size:100% 100%}
  .pillar-ico,.t-ring{animation:none}
}

/* v3 微调 */
.hero-home .h1-line em{white-space:nowrap}
.hero-home .soundwave{margin-top:28px}
.hero-home{padding-bottom:112px}
@media(max-width:900px){.hero-home{padding-bottom:104px}}

/* ==========================================================
   v4 · 参考官方站 parent 页的版式：整屏照片首屏、关于左图右文、
        一深两浅服务卡、名师照片、圆圈连线流程
   ========================================================== */
:root{--teal:#14a897;--teal-d:#0d8678}
@keyframes kb{from{transform:scale(1.04)}to{transform:scale(1.13) translate(-1.6%,0)}}
@keyframes shine{from{background-position:0% 50%}to{background-position:200% 50%}}

/* ---------- 首屏：整屏照片 ---------- */
.hero-photo{display:flex;align-items:center;min-height:min(84vh,700px);padding:92px 0 150px;background:#0b3340;color:#fff}
.hero-photo-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:70% 38%;max-width:none;animation:kb 28s ease-in-out infinite alternate;will-change:transform}
.hero-photo-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,38,46,.95) 0%,rgba(8,47,59,.84) 36%,rgba(8,47,59,.34) 66%,rgba(8,47,59,.08) 100%),linear-gradient(0deg,rgba(6,38,46,.5) 0%,transparent 40%)}
.hero-photo .hero-inner{display:block}
.hero-photo .hero-copy{max-width:720px}
.pill-eyebrow{display:inline-flex;align-items:center;gap:10px;padding:8px 18px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);font-size:13px;font-weight:700;letter-spacing:.04em;color:#f1faf8;margin:0 0 22px}
.pill-eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--sun);box-shadow:0 0 0 0 rgba(255,191,65,.7);animation:pulse 2.4s ease-out infinite}
.hero-photo h1{display:block;width:auto;background:none;animation:fadeUp .9s var(--ease) .15s both;font-size:clamp(30px,4.3vw,52px);line-height:1.25;margin:0 0 20px;color:#fff;text-wrap:balance}
.hero-photo .h1-brand{display:block;font-size:clamp(14px,1.4vw,16px);letter-spacing:.24em;color:#9fe3d6;font-weight:700;margin-bottom:14px}
.hero-photo .h1-a{display:block}
.hero-photo .h1-b{display:block;background:linear-gradient(100deg,#ffd37a 0%,#f6b84f 35%,#ffe3a4 55%,#f6b84f 80%,#ffd37a 100%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shine 6s linear infinite;padding-bottom:.06em}
.hero-photo .hero-lede{color:rgba(255,255,255,.88);font-size:16px;line-height:1.95;max-width:540px;margin:0 0 28px}
.hero-photo .btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.42);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.hero-photo .btn-ghost:hover{background:#fff;color:var(--sea)}
.hero-photo .hero-chips{margin-top:8px}
.hero-photo .hero-chips li{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.28);color:#eaf7f5}
.hero-photo .wv1{fill:rgba(251,249,244,.18)}
.hero-photo .wv2{fill:rgba(251,249,244,.38)}

/* ---------- 联系条（压在首屏底部） ---------- */
.quick-bar-wrap{position:relative;z-index:6;margin-top:-62px}
.quick-bar{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow-lg);padding:8px}
.qb-item{display:flex;align-items:center;gap:14px;padding:18px 20px;border-radius:16px;transition:background .3s}
.qb-item+.qb-item{border-left:1px solid var(--line)}
.qb-item:hover{background:var(--tint)}
.qb-ico{flex:0 0 46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--teal),#2cc4ad);color:#fff;box-shadow:0 10px 20px rgba(20,168,151,.28);transition:transform .45s var(--ease)}
.qb-item:hover .qb-ico{transform:rotate(-8deg) scale(1.08)}
.qb-item small{display:block;font-size:12px;color:var(--muted);line-height:1.4}
.qb-item strong{display:block;font-size:15px;line-height:1.45;margin-top:2px}
.qb-item strong a{color:inherit}

/* ---------- 数据（扁平大数字） ---------- */
.section-stats{padding:56px 0 8px}
.stat-grid.flat .stat{background:none;border:0;border-radius:0;padding:10px 12px;box-shadow:none}
.stat-grid.flat .stat::after{display:none}
.stat-grid.flat .stat+.stat{border-left:1px solid var(--line)}
.stat-grid.flat .stat:hover{transform:none;box-shadow:none}
.stat-grid.flat .stat strong{font-size:clamp(30px,4vw,48px);background:linear-gradient(120deg,var(--teal-d),#27c3ad);-webkit-background-clip:text;background-clip:text}
.stat-grid.flat .stat span{font-size:13px}

/* ---------- 关于：左图右文 ---------- */
.section-about{padding-top:56px}
.about-split{display:grid;grid-template-columns:1fr 1.05fr;gap:64px;align-items:center}
.about-photo{position:relative}
.about-photo img{display:block;width:100%;height:auto;border-radius:28px;box-shadow:var(--shadow-lg);aspect-ratio:16/10.4;object-fit:cover}
.badge16{position:absolute;right:-30px;bottom:34px;width:136px;height:136px;border-radius:50%;background:linear-gradient(135deg,#2cc4ad,var(--teal-d));color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:0 22px 40px rgba(13,134,120,.4);animation:floaty 6s ease-in-out infinite}
.badge16 strong{font-size:44px;line-height:1;letter-spacing:-.02em}
.badge16 span{font-size:12px;margin-top:4px;opacity:.95}
.badge16 i{position:absolute;inset:-9px;border-radius:50%;border:2px dashed rgba(20,168,151,.55);animation:spin 24s linear infinite}
.about-copy h2{font-size:clamp(26px,3vw,36px);margin:0 0 16px}
.about-copy .eyebrow{color:var(--teal-d)}
.about-p{color:#3b535c;font-size:15px;line-height:1.95;margin:0 0 14px}
.pillar-mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
.pillar-mini{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px;transition:transform .4s var(--ease),box-shadow .4s,border-color .3s}
.pillar-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#bfe6df}
.pm-ico{flex:0 0 42px;height:42px;border-radius:12px;background:#e6f6f3;color:var(--teal-d);display:flex;align-items:center;justify-content:center;transition:background .3s,color .3s}
.pillar-mini:hover .pm-ico{background:var(--teal);color:#fff}
.pillar-mini h3{font-size:15px;margin:0}
.pillar-mini p{font-size:12px;color:var(--muted);margin:2px 0 0;line-height:1.6}

/* ---------- 版块居中标题 ---------- */
.head-center{text-align:center;max-width:720px;margin:0 auto 38px}
.kicker{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--teal-d);margin-bottom:8px;position:relative;padding:0 22px}
.kicker::before,.kicker::after{content:"";position:absolute;top:50%;width:14px;height:2px;border-radius:2px;background:var(--teal)}
.kicker::before{left:0}.kicker::after{right:0}
.head-center h2{margin:0 0 10px!important}
.head-center p{color:var(--muted);margin:0;font-size:15px}
.center-link{text-align:center;margin:30px 0 0;font-weight:700}

/* ---------- 服务：一深两浅 ---------- */
.svc-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:18px;align-items:stretch}
.svc{position:relative;border-radius:22px;padding:32px 30px 30px;display:flex;flex-direction:column;transition:transform .45s var(--ease),box-shadow .45s}
.svc:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.svc h3{font-size:clamp(20px,2vw,24px);margin:0 0 10px;letter-spacing:-.01em}
.svc p{font-size:14px;line-height:1.9;margin:0 0 18px}
.svc-main{background:linear-gradient(160deg,#10262e 0%,#0d3946 100%);color:#fff;overflow:hidden}
.svc-main::after{content:"";position:absolute;width:320px;height:320px;right:-110px;top:-120px;border-radius:50%;background:radial-gradient(circle,rgba(20,168,151,.45),transparent 70%);pointer-events:none}
.svc-main h3{font-size:clamp(28px,3.2vw,38px);color:#fff;margin:16px 0 12px}
.svc-main p{color:rgba(255,255,255,.8);font-size:15px}
.svc-tag{align-self:flex-start;font-size:12px;font-weight:700;padding:5px 14px;border-radius:999px;background:rgba(255,255,255,.88);color:#10262e}
.svc-tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:auto 0 24px}
.svc-tiles div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:14px;padding:14px 14px 12px;transition:background .3s,transform .4s var(--ease)}
.svc-tiles div:hover{background:rgba(255,255,255,.15);transform:translateY(-3px)}
.svc-tiles strong{display:block;font-size:16px;margin-bottom:2px}
.svc-tiles span{font-size:12px;color:rgba(255,255,255,.7);line-height:1.6;display:block}
.svc-btn{align-self:flex-start;display:inline-flex;align-items:center;font-size:13px;font-weight:700;padding:10px 20px;border-radius:999px;border:1px solid transparent;transition:transform .3s var(--ease),box-shadow .3s,background .3s,color .3s}
.svc-btn:hover{text-decoration:none;transform:translateY(-2px)}
.svc-main .svc-btn{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.4);color:#fff}
.svc-main .svc-btn:hover{background:#fff;color:#10262e}
.svc-light{background:#fff;border:1px solid var(--line);border-left:5px solid var(--coral)}
.svc-light.svc-l2{border-left-color:var(--sea2)}
.svc-n{width:50px;height:50px;border-radius:14px;background:var(--coral-soft);color:var(--coral-d);font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.svc-l2 .svc-n{background:#e6f1f4;color:var(--sea2)}
.svc-light p{color:#3b535c}
.svc-tag2{align-self:flex-start;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;background:var(--tint);color:var(--sea);border:1px solid var(--line);margin:auto 0 16px}
.svc-actions{display:flex;gap:8px;flex-wrap:wrap}
.svc-light .svc-btn{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(232,112,63,.25)}
.svc-l2 .svc-btn{background:var(--sea2);box-shadow:0 8px 18px rgba(18,101,124,.25)}
.svc-light .svc-btn.ghost{background:#fff;color:var(--coral-d);border-color:#f0c9b2;box-shadow:none}
.svc-l2 .svc-btn.ghost{color:var(--sea2);border-color:#bcd9e1}
.section .pill-grid{margin-top:26px}

/* ---------- 名师团队（照片版） ---------- */
.teacher-card{display:grid;grid-template-columns:210px 1fr;gap:40px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:26px;padding:38px 44px;box-shadow:var(--shadow)}
.teacher-photo{position:relative;width:176px;height:176px;margin:0 auto}
.teacher-photo img{position:relative;z-index:2;display:block;width:136px;height:136px;margin:20px;border-radius:50%;object-fit:cover;object-position:50% 22%;border:4px solid #fff;box-shadow:0 18px 36px rgba(14,74,95,.28)}
.teacher-photo .t-ring{position:absolute;inset:0;border-radius:50%;border:2px dashed rgba(20,168,151,.55);animation:spin 28s linear infinite}
.teacher-photo .t-ring.r2{inset:9px;border:2px solid rgba(255,191,65,.7);border-left-color:transparent;border-right-color:transparent;animation:spin 14s linear infinite reverse}
.teacher-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.teacher-body h3{font-size:28px;margin:0}
.role-pill{font-size:12px;font-weight:700;padding:5px 14px;border-radius:999px;background:#e6f6f3;color:var(--teal-d);border:1px solid #bfe6df}
.teacher-sub{color:var(--muted);font-size:14px;margin:6px 0 12px!important}
.teacher-body p{font-size:15px;color:#33505a;line-height:1.95;margin:0 0 16px}
.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:4px 0 18px}
.mini-stats div{background:var(--tint);border:1px solid var(--line);border-radius:14px;padding:14px 10px;text-align:center}
.mini-stats strong{font-size:26px;line-height:1.2;color:var(--teal-d);font-variant-numeric:tabular-nums}
.mini-stats em{font-style:normal;font-size:13px;color:var(--teal-d);font-weight:700;margin-left:2px}
.mini-stats small{display:block;font-size:12px;color:var(--muted);margin-top:2px}

/* ---------- 流程：圆圈连线 ---------- */
.steps4{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:0;padding:0;position:relative}
.steps4::before{content:"";position:absolute;left:12.5%;right:12.5%;top:34px;height:3px;border-radius:3px;background:linear-gradient(90deg,var(--teal),var(--sun));opacity:.55;transform-origin:left}
.js .steps4.rv::before{transform:scaleX(0)}
.js .steps4.rv.in::before{transform:scaleX(1);transition:transform 1.5s var(--ease) .25s}
.steps4 li{position:relative;text-align:center;padding:0 8px}
.s-n{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;width:68px;height:68px;margin:0 auto 18px;border-radius:50%;background:#fff;border:2px solid var(--teal);color:var(--teal-d);font-size:22px;font-weight:800;box-shadow:0 12px 26px rgba(20,168,151,.22);transition:transform .45s var(--ease),background .3s,color .3s}
.steps4 li:hover .s-n{background:var(--teal);color:#fff;transform:scale(1.1)}
.steps4 strong{display:block;font-size:17px;margin-bottom:6px}
.steps4 p{font-size:13px;color:var(--muted);margin:0 auto;max-width:210px;line-height:1.75}

.section-tail{padding-top:24px}

@media(max-width:900px){
  .hero-photo{min-height:0;padding:70px 0 140px}
  .hero-photo-img{object-position:62% 30%}
  .hero-photo-shade{background:linear-gradient(180deg,rgba(6,38,46,.72) 0%,rgba(8,47,59,.9) 100%)}
  .quick-bar{grid-template-columns:1fr 1fr}
  .qb-item:nth-child(3){border-left:0}
  .qb-item:nth-child(n+3){border-top:1px solid var(--line)}
  .about-split{grid-template-columns:1fr;gap:44px}
  .badge16{right:12px;bottom:-26px;width:112px;height:112px}
  .badge16 strong{font-size:36px}
  .svc-grid{grid-template-columns:1fr 1fr}
  .svc-main{grid-column:1/-1}
  .teacher-card{grid-template-columns:1fr;gap:22px;padding:30px 26px}
  .teacher-photo{margin:0}
  .steps4{grid-template-columns:repeat(2,1fr);row-gap:34px}
  .steps4::before{display:none}
  .stat-grid.flat .stat:nth-child(3){border-left:0}
}
@media(max-width:640px){
  .quick-bar-wrap{margin-top:-56px}
  .quick-bar{grid-template-columns:1fr}
  .qb-item+.qb-item{border-left:0;border-top:1px solid var(--line)}
  .pillar-mini-grid,.svc-grid,.svc-tiles,.mini-stats{grid-template-columns:1fr}
  .svc-main{grid-column:auto}
  .steps4{grid-template-columns:1fr}
  .stat-grid.flat .stat+.stat{border-left:0}
  .stat-grid.flat .stat:last-child{grid-column:auto}
  .section-stats{padding:40px 0 0}
}
@media(prefers-reduced-motion:reduce){
  .hero-photo-img,.badge16,.badge16 i,.teacher-photo .t-ring,.pill-eyebrow i{animation:none}
  .hero-photo .h1-b{animation:none}
  .js .steps4.rv::before{transform:none}
}

.hero-photo .btn-primary{background:linear-gradient(135deg,var(--coral),#f08a5f);box-shadow:0 12px 26px rgba(0,0,0,.3)}

/* v4 微调 */
.stat-grid.flat .stat strong{font-size:clamp(22px,3.1vw,40px);white-space:nowrap}
@media(max-width:640px){.hero-photo h1{font-size:26px}.hero-photo .h1-brand{font-size:13px}}
@media(max-width:900px){.badge16{right:4px}}
@media(max-width:640px){.stat-grid.flat .stat strong{font-size:21px}.stat-grid.flat .stat{padding:10px 4px}}
.section-about{overflow-x:clip}